12506945 has 8 divisors (see below), whose sum is σ = 16372800. Its totient is φ = 9095920.

The previous prime is 12506941. The next prime is 12506947. The reversal of 12506945 is 54960521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12506945 - 2² = 12506941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12506941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113645 + ... + 113754.

It is an arithmetic number, because the mean of its divisors is an integer number (2046600).

Almost surely, 2^12506945 is an apocalyptic number.

It is an amenable number.

12506945 is a deficient number, since it is larger than the sum of its proper divisors (3865855).

12506945 is a wasteful number, since it uses less digits than its factorization.

12506945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227415.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 12506945 is about 3536.5159408661. The cubic root of 12506945 is about 232.1224148356.

The spelling of 12506945 in words is "twelve million, five hundred six thousand, nine hundred forty-five".